Abstract

Results on the decay of the new particles J/ψ(3100) and ψ'(3700) are summarized which have been obtained by the Aachen-Hamburg-Munich-Tokyo collaboration (DASP collaboration) with the double-arm spectrometer DASP at the DORIS storage rings (DESY, Hamburg). Besides the radiative cascade decay of ψ'(3700) and the three-photon decay of J/ψ(3100), the hadronic two-body and quasi-two-body decay modes of J/ψ(3100) are discussed.

Footnotes

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